The Yellow River is famous for its rich sediment. In ancient books, it is often described as "one stone in the river, six buckets of mud" and "the Yellow River is fighting for water, and mud ranks seventh". The average sediment transport in the lower reaches of the Yellow River for many years is 65.438+0.6 billion tons, and the average sediment concentration is about 35 kilograms per cubic meter. The high sediment concentration of the Yellow River is unique among the rivers in the world. If the sediment is 6543.8+600 million tons,
Therefore, choose: B.